About the fantasy stuff, Kh-66 used exactly the same guidance system as RS-2us, which was the main armament of bis for "everyday use". So no, Kh-66 is not fantasy.
As for MiG-19, to my knowledge it used Sirena-2.
I really hope we get a whole trio of P, PT (P with the R3S) and PM (no guns, but four RS-1/RS-2(us) missiles) ^^ I have a weakspot for the 19's, they never get enough love...